Optical scanner



FIG. 1 is the perspective view of a design for optical scanner showing my design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is the right side elevational view thereof;

FIG. 4 is the front elevational view thereof;

FIG. 5 is the rear elevational view thereof;

FIG. 6 is the top plan view thereof; and,

FIG. 7 is the bottom plan view thereof. 

The ornamental design for an optical scanner, as shown. 